Tony M May 7, 2017:

@ Asker For your latest question about a synonymous term, please refer to this virtually identical question.
Your new question did give some of the missing context here, since it explained that it is a card sign, and that it hangs on the door-knob; this sound like the classic 'Do not disturb' sign used in hotels.

AllegroTrans May 3, 2017:

Asker Could you please answer the request for further context if you want a reliable answer

Tony M May 2, 2017:

@ Asker If it is "very important", then you need to give us a bit more information about what kind of sign it is, which will almost certainly influence the transaltion.

For example, is it like one of those cardboard signs that you can hang in a shop door that says 'Open' and 'Closed' on either side, so you can turn it round to tell people if the shop is open or closed?